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Old 08-26-2014, 09:35 PM   #1
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Join Date: Aug 2014
Location: Cedar Rapids
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Possible leak with freshwater system

Hello, I'm hoping somebody has some advice or suggestions for me. I have a 2007 Jayco 25RKS. On our last trip I was filling the freshwater tank and noticed a couple of things. One, it was taking, what seemed like, a really long time to fill the tank. Secondly, and more concerning, I noticed, what I now realize, the black underbelly liner bulging directly behind the freshwater tank. I can push on the liner and tell there is water in there.....it is like a water bladder. I also pushed my finger up along on of the propane lines that goes through the liner in that area and I can feel wet insulation in there. My best guess is that the corrugated hose/pipe from the inlet on the side of the trailer to the freshwater tank is leaking and sending water into the liner and thereby causing a slow fill up to the tank. Does that sound like a reasonable diagnosis? Is there any problem with making a slice in the underbelly lining to drain the water until repairs can be made? Thanks for any input!

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Old 08-26-2014, 09:49 PM   #2
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Welcome to JOF

Yes, cut a small opening to relieve the water/weight before the underbelly material collapses onto the ground. Also make sure the fresh water tank drain is opened.



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Old 08-26-2014, 10:14 PM   #3
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I suggest you completely remove the coroplast and insulation to determine where the leak is and how to fix it. It may be leaking from any number of potential places. You will never know until you see the whole FW system.

I had a leak that came from a hose connecting my two FW tanks. It is a pain to take it all down, but unless you find and fix the leak and dry out the insulation, you are in for way more trouble in the form of mold, rust and rot.
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Old 08-27-2014, 04:24 PM   #4
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Thanks for the input!

I spoke with the dealer this morning and I will be taking the TT into them to find and repair the leak. In the meantime, I will be cutting an opening in the underbelly lining to get rid of the water.
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